自制金属底座与Vita MarkⅡ瓷块粘结强度的研究  

Study on Bonding Strength Between Self-made Metal Stub and Vita MarkⅡ Ceramic Block

作　　者：赵云凤[1] 李明哲[2] 李勇[1] 王华蓉[1] 

机构地区：[1]四川大学华西口腔医院口腔修复科,成都610041 [2]成都军区总院口腔科

出　　处：《四川大学学报（医学版）》2004年第1期101-102,共2页Journal of Sichuan University(Medical Sciences)

摘　　要：目的　研究不同界面处理及不同粘结剂对自制金属底座与 Vita Mark 瓷块粘结强度的影响。方法金属底座表面采用喷砂、磨光处理 ,选用环氧树脂粘结剂、α-氰基丙烯酸脂粘结剂 ,测试粘结后及浸水后的粘结剪切强度。结果　常温下 ,当金属底座表面经喷砂处理用 α-氰基丙烯酸脂粘结剂粘结 ,粘结强度最高 ,为 (84 2 .6 0±5 6 .0 6 ) N,但浸水后下降为 0 ;当金属底座表面磨光处理用环氧树脂胶粘剂粘结 ,粘结强度为 (76 2 .4 4± 2 14 .82 ) N,与喷砂处理组无显著性差异 (P>0 .0 5 ) ,浸水前后亦无显著性差异 (P>0 .0 5 )。结论　环氧树脂粘结剂可用作金属底座与瓷块的粘结剂。Objective To study the effect of different surface treatments and different bonding agents on the bonding strength between self-made metal stub and Vita MarkⅡ ceramic block.Methods Sandblasting and grinding were used to treat the surface of metal stub; epoxy resin and α-cyanoacrylate ester were selected; shear bonding strength was tested and the water-resist test was carried out. Results At normal temperature, the maximum bonding strength between the surface of metal stub (treated by sandblasting) and α-cyanoacrylate ester (as bonding agent) was determined to be (842.60±56.06) N, but it decreased to 0 after 15-day water-resist test. The maximum bonding strength between the surface of stub (treated by grinding) and epoxy resin (as bonding agent) was determined to be (762.44±214.82) N, which was not significantly different from the maxium bonding strength of the sandblasting-treatment group (P>0.05), and no significant change of the bonding strength was seen after 15-day water-resist test. Conclusion Epoxy resin has good properties; it is the suitable bonding agent of choice for forming a firm bond between metal stub and ceramic block.

关 键 词：金属底座 陶瓷 粘结强度 

分 类 号：R783.1[医药卫生—口腔医学]